@article{acombinatorialcharacterizationofonline,
  title = {A Combinatorial Characterization of Supervised Online Learnability},
  author = {Vinod Raman and Unique Subedi and Ambuj Tewari},
  year = {2023},
  eprint = {2307.03816},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2307.03816v2},
}